Knob attachment.



m. s7|,u|s. Patenten Apr.v 2, |901. -W. H. GONNE.

Knus Ar'rAcnulen'r, l v `(ApplieqionMed Jyxly 2, 1900.) ma man.) 1

.lttorneys- WILLIAM H. GONNE, OF CHATHAM, CANADA, ASSIGNOR OF ONE-HALF TO HATTIE V. GONNE, OF DETROIT, MIGHGAN.

KNOB ATTACHMENT.

SPECIFICATION' forming part of Letters Patent No. 6'? 1,018, dated April 2, 1901. Application filed July 2, 1900. Serial No. 22,281. (No model.)

as will enable others Skilled in the art to which j ro it appertains to make and use the same, reterence being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this speciicamon.

This invention relates to adjustable knobspindles; and it consists in the construction and arrangement of parts herenafterset forth, and pointed out particularly in the claims.

The object of the invention is to provide zo simple and effective means for mountngthe knobs upon an adjustable spindle, wherein the arrangement is such as to allow ot' a perfect adjustment of the parts to accommodate doors ot' various thicknesses and securelylock the adjustable parts when properly adjusted.

The above'object is attained by the arrangement illustrated in the accom panyingY drawings, in which- Figure 1 is a central longitudinal section 3o through the knobs and spindle. Fig. 2 is a side elevation of the adjustable spindle. Fig. 3 is a transverse section through the neck of the knob and the spindle therein as on line 3 3 of Fig. 1. Fig. 4 is an edge View of the looped portion of the two-part spindle. Fig. 5 is a like view oi' the single or complementary portion of the spindle. Fig. 6 is a transverse section through the neck of one of the knobs and the spindle lying therein as on line 4o (i ('l 0f Fig. l.

Referring to the characters of reference, l and 2 designate the knobs, respectively provided with necks 3 and 4, which form sockets that receive the opposite ends of lthe spindle.

Mounted upon the necks of the knobs are the usual rose-plates 5.

The spindle proper is composed of two parts comprising a single central spindle 6 and a looped ordouble spindle 7, adapted to receive 5o the free end of the central spindle between its opposite sides. Formed through the central spindle is a series of apertures 8, and formed in the opposite sides of the looped spindle is an aperture 9, adapted to 'register with the apertures in the central spindle, whereby said parts may be detachably united by means of a pin 10 passing through the registering apertures of said parts, as clearly shown in Fig. 1.

Formed upon the outer end of the central 6o spindle 6 is an angular foot portion 11, which lies Within the aperture in the neck 3 and is permanently secured to the knob 2 by means of the rivet 12, which passes through the wall of said knob and through the bent foot portion ot' said spindle, as also shown in Fig. 1.

The main or looped portion of the spindle is made by bending a flat piece of metal upon itself at its longitudinal center, forming sides which stand approximately parallel and be- 7o tween which is a slot Or channel 13, which is adapted to receive the end of the single spindle 6. The looped end of the spindle 7 is threaded at the corners, as shown at 14, and the neck 4 of the knob l is tapped with a cor- 75 responding thread, so that it may be screwed upon said threaded looped portion, whereby knob 1 maybe screwed any required distance upon the spindle to make the knobs fit the door tightly, thereby obviating any lost motion. 8o When knob 1 has been screwed onto the looped threaded end of the spindle the proper distance, it is locked from unscrewing by means of a pin 15, which has a round head and a flat shank 16. Said pin is passed through an opening .in the neck 4 and engages in thc slot 13 between the sides of the looped portion of the spindle, whereby the knob 1 is locked upon said spindle. To prevent said pin from accidentally dropping out of the neck 4 and 9o allowing the knob 1 to turn upon the spindle, the flattened portion of said pin is bent, as shown at 17 in Fig. 3, whereby when forced between the sides forming the loop of the spindle it causes said sides to spring slightly apart, and when the pin has been seated its bent end will project through the slot and engage the corner of the spindle with sufficient friction to prevent it from accidentally dropping out. Said pin maybe readily removed, when it is roo desired to remove the knobs from the door, by means of a suitable punch.

Should it transpire that the adjustment of the threaded union between knob l and the looped portion of the spindle is insufficient, the spindle may be lengthened or shortened through the medium of the pin-10 and the registering apertures through' the united parts of said spindle, whereby said spindle may be made to accommodate any thickness of door.

On referring to Fig. 6 it will be seen that the aperture in the neck 3 is square and that the ends of the looped portion 7 of the spindle lie in said opening and receive the central portion 6 of the spindle between them, thereby iilling the square opening` in said neck and locking the spindle to the knob, so as to cause it to turn therewith.

Having thus fully set forth my invention, what I claim as new, and desire to secure by Letters Patent, is

l. In an adjustable knob-spindle, the combination with the knobs, of the spindle comprising a looped portion att-ached to one knob and a central portion lying within said looped portion, the outer end of the central portion of the spindle being bent and riveted to the other knob.

2. In an adjustable knob-spindle, the combination with the knobs, of the spindle comprising a looped portion attached to one knob, a central portion attached to the other knob, the end of the central portion lying between the sides of the looped portion and means for adjustably uniting said spindle parts.

3. In an adjustable knob-spindle, the combination with the knobs, of the looped spindle forming an open slot between the parallel sides thereof, the neck of the knob embracing` the looped end of said spindle 'and the flattened pin passing through the neck of the knob and engaging in said slot.

4. In an adjustable knob-spindle, the combination with the knobs, of the two-part spin dle, the main part comprising a loop attached to the complementary portion of the spindle and having an opening-slot therethrough, the neck of the knob embracing the looped end of said main portion of the spindle, a {iattened pin having a bent end, said pin passing through the neck of the knob and its bent end passing` through the slot of the looped portion and engaging the corner of the spindle. y

5. In an adjustable knob-spindle, the combination with the knobs, of a two-part 'spindle comprising a looped portion and a central portion embraced by said looped portion and detachably united thereto, the looped portion of said spindle having an exterior thread cut thereon, the neck of the knob being internally threaded to screw onto said threaded spindle and a pin passing through the neck of the knob and into the slot of the looped portion of the spindle.

In testimony whereof I sign this specification in the presence of two witnesses.

WILLIAM II. GONNE. Witnesses:

E. S. WHEELER, C. EDNA JosLIN. 

